Proteins Revision
L.O: To recall info on proteins
To identify and correct any misconceptions
Starter:
Q) Polypeptides such as spectrin are formed
from amino acids. Describe the structure of an
amino acid molecule and explain how amino
acids link together.
6 marks
Mark Scheme
1. Amino acid based on carbon with four
groups attached;
2. Amino/ NH2 and carboxyl/ COOH;
3. R-group/ side chain + hydrogen;
4. R-group differs from one amino acid to
another;
5. Amino acids joined by condensation;
6. Bond formed between NH2 and COOH;
7. Involves removal of molecule of water;
8. H from NH2 and OH from COOH;
What Do I Need to Know?
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Structure of an amino acid
Formation of a polypeptide
Functions of proteins
Levels of protein structure
Application of knowledge
to ‘unknown scenarios’
Increasing in
knowledge
Protein Structure
Activity Options:
 Pasta poster
 Past exam questions
 ‘If I Am the Answer…’ worksheet / glossary
 Revision mindmap